Apparatus for cooling and drying air for use in malt-houses.



W. H. PRINZ. APPARATUS PQR COOLING AND DRYING AIR FOR USE IN MALT HOUSES.

APPLICATION lILED JULY 18, 1903.

Patented July 11, 1911.

2 SHEETS-SHEET I.

W. H. PRINZ. I APPARATUS Fon COOLING AND DRYING AIR F011 USE IN MALT HOUSES.

, APPLICATION FILED JULY 18, 1903.

997,581. Patented July 11, 1911.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT oEEIcE.

WILLIAM H. PRINZ, or CHICAGO, 'ILLINoIs APPARATUS FOR COOLING AND DRYING- AIB FOR USE IN MLT-HOUSES.

Specification of Letters Patent.

Application filed July 18, 1903. Serial No. 166,205.

To all whom it may concern:

Be it known that I, VILLIAM H. PRINZ, a citizenI of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Apparatus for Cooling and Drying Air for Use in Malt-Houses, of which the following is a specification, reference being had to the accompanying drawings.

My invent-ion relates to malt houses, and has for its object to provide new and improved apparatus for attemperating and drying air for use in malt houses. y

The apparatus illustrated in the drawing and hereinafter described is designed with special reference to carrying out my improved process described in my application for Letters Patent for method of making malt of even date herewith, butit is not restrict-ed in its use solely to carrying out such process. which the air may be properly cleansed. cooled and dried; also in improved means by which the cooling and purifying of the air may be more economically efected than by the use of the various forms of apparatus heretofore employed for the purpose.

In the accompanying drawings Figure 1 is a partial vertical section of a malt house, illustrating the compartment in which the steep-tanks are placed and the attemperatorroom, together with suitable pumping-apparatus for securing the necessary circulation of the water. Fig. 2 is a plan view of one of the water coils or systems of piping; Fig. 3 is .n end view thereof; Fig. 4 is a view, illustrating the arrangement and connections of the spraying devices; and Fig. 5 is an enlarged detail, partly in section of one of the spray-nozzles or heads.

Referring to the drawings,-1 indicates the attemperator-floor or room of the malt house, which is preferably at one side of the ioor containing the malting compartments and communicates therewith through .a passage 2.y

3 indicates a series of perforated metal plates or sheets, arranged transversely in the attemperator-room and provided with spray ing-devices 4 adapted to distribute water in i finely-divided condition over the surfaces of said plates or sheets. Said spraying-devices are preferably of the construction shown in Fig. 5, being composed of bifurcated heads 18 and branches 19-20, which are tubular It consists in improved means by and together form a substantially kiteshapedr figure. The upper ends of said branches are turned toward each other and lie almost in cont-act, as shown at 21 in Fig. 5.y They are perforated, as shown at 22 in Fig. 5. The arrangement is such that the jets of water discharged by each of said branches come together and form a fine spray of water lying in the 'plane of the opening between said branches. The heads are adjusted so that theA spray is substantially parallel with the sheets 3 over which the water is to be distributed. Thev spraying-devices 4 receive the water through pipes 5 which communicate with supply-pipes 6 connected to a suitable main 23, to which water is supplied in any suitable manner.

7 indicates a perforated sheet, preferably of metal, which is arranged in advance of the first of the sheets 3,-that'is to say,

nearer the'inlet-end of the attemperatorroo-m,-which said sheet 7v is not provided Vwith spraying-apparatus and serves to divide the air entering the attemperator-room Patented July I1, 1911.

ing from said sheets 8 comes in contact with the pipes 9, and as such pipes are kept at a low temperature by the circulation of water therethrough, as hereinafter described, the air coming into. contact therewith is relieved of all the moisture therein that may readily be deposited by condensation.

10 indicates a pump, which communicates| by pipe 11 with the pipes 9 and serves to pump cold water through said pipes.

12 indicates one of the steep-tanks, which, as shown, are placed above the attemperatorroom and receive water from the pipes 9 through a pipe 13.

14 indicates an overflow-pipe, communiveating with the upper portions of the steeptanks 12 and discharging into a reservoir 15. 27 indicates another overflow pipe which communicates with the steep-tank 12 at a lower level than the pipe 14. The pipe 27 is intended to carry oif Water alone, While the pipe 14 carries oif Water miXed with grain. A strainer (not shown) is provided to prevent the grain flowing into the pipe 27. The pipe 27 also discharges into the reservoir 15, Which is also provided with a strainer to retain therein the grain passing to it through pipe 14.

16 indicates a s-econd coil or series of pipes, placed at the inner end of the attemperator-room and receiving Water from the reservoir 15 through a pipe 17, as shown.

1S indicates an outlet from the pipes 16, which may discharge into the sewer.

The construction of the coil or series of pipes 16 is preferably as shoivn in Figs. 2 and 3, there being two headers 23a24 connected by a series of cross or branch pipes 25. Any other suitable construction may, however, be employed. The series of pipes 9 is preferably of the same construction.

By the construction described the cold Water pumped through the pipes 9 passes into steep-tanks 12 Where it serves the purpose of steeping the grain therein,-after which it overflows through pipe 14 and finally reaches the pipes 16, being then at a somewhat higher temperature. The temperature of the Water in the pipes 9 is usually from forty-eightto iifty degrees Fahrenheit,-While that in the pipes 16 ranges from sixty to sixty-five degrees. I thus make use of the same Water for three purposes, iirst, in the pipes 9 it serves as a final means of condensing moisture from the air under treatment; second, it serves as a means of steeping the grain in the steeptanks; and,- third, it serves as a preliminary means of condensing the surplus moisture from the air as it passes into the attemperator-room. Atmospheric air from the outside entering the attemperator-room through a passage 26 first comes into contact With the pipes 16, Where the moisture carried by it, together with a large proportion of its impurities,A is condensed and deposited. The air then passes through the sheet 7, being divided into fine streams,-in Which condition it passes through sheets 3, Where it is Washed by the water from the sprays 4 and is maintained in a iinely-divided condition during the Washing operation. From the last sheet 3 the air passes through sheets 8 which are not supplied with spraying mechanism and Which act to intercept and separate therefrom the small globules of Water entrained with the air passing through such plates. The air then passes over pipes 9, Which, being maintained at a low temperature by the cold Water therein, cool it before it passes through the outlet 2.

It Will be understood that the air is caused to HOW through the attemperator room by a suction fan located in some other part of the building, or it may be caused to flow in the proper direction by any other suitable mechanism.

I Wish it to be understood that While I have described specifically the form of apparatus illustrated, my invention is not restricted to the details of the construction shown and described, except in so far as they are particularly claimed.

That Which I claim as my invention and desire to secure by Letters Patent is,-

1. In a malting apparatus, the combination of an attemperator room having an outlet leading to a malting compartment room, a series of perforated plates in said atteinperator room through which the air passes, spraying devices arranged adjacent to said plates, and means comprising a perforated plate through which the air passes after the spraying operation and prior to its discharge through said outlet for intercepting the small globules of Water entrained with the air.

2. In a malting apparatus, the combina-A ing a perforated plate through which the air passes after the spraying operation and prior to its discharge through said outlet for intercepting the small globules of Water entrained with the air.

WILLIAM I-I. PRINZ.

Witnesses:

JOHN L. JACKSON,

HELEN M. COLLIN.

Copies of this patent may be obtained for` five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

